Forum Discussion
thomasmnile
Jul 18, 2016Explorer
ShinerBock wrote:Bionic Man wrote:
Why would this increase the maintenance cost???
I thought the old recommendation was for regular 15w40 like almost all other diesels take. Going from that to a synthetic requirement would make the maintenance cost increase.
Difference between 5w40 and 15w40 is viscosity, either can be synthetic or synthetic blend.
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